Channels 3.x works with Django 2.2+ as seen here (https://github.com/django/channels/blob/main/setup.py#L16)

However DjangoChannelsGraphqlWs requires Django >3, it would be better to align these to Django >2.2 and allow maximal flexibility.

For example we are upgrading on Django 2.2 from Channels 1->3, which should be doable, except for the requirements in DjangoChannelsGraphqlWs (https://github.com/datadvance/DjangoChannelsGraphqlWs/blob/master/pyproject.toml#L56), which I dont believe is a necessary restriction, as I can't see anything in this repro whic would need Django 3.x